While similar, Sejuani and Bristle only drop one soul between them. This had led to a joke among the community that Sejuani has ginger hair in reference to the internet meme that gingers have no soul. [2]

Sejuani and Bristle's case may also stem from the religious belief that animals have no souls[3], although apparently Yetis get to go to heaven.

In thermodynamics, Absolute Zero refers to a state where the temperature of a system is at the theoretical lowest possible limit: approximately -459.67 degrees Fahrenheit, -273.15 degrees Celsius, or zero Kelvin.

The screens in the artwork also reference the series, displaying the words "Push" and "Uploading A.I.".

The text-to-speech voice used for Nunu Bot is different from the one used in the series, due to copyright issues. The text-to-speech program from another character in the series was used for the skin instead.[4]